zeiktuvai
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Contributor

ESXi Networking vSwitch networking issue

Hello everyone!
   I have been fighting a very strange networking issue and am turning to the community for help.  I have a vswitch, with two uplinks; the switch has 3 port groups for 3 different VLANs.  One of those VLANs is for VMs that connect directly to the ISP network with a global IP address.  
  On the switch both ports are configured as trunk ports, with a native VLAN and allowed VLANs (but not as a port group).  Randomly one VM will loose the ability to ping the external gateway (the ISP gateway and not my internal router) even though another VM on the same server, same network can still ping. 
  I have tried all kinds of things, including using a laptop to make sure I can ping from each IP to the ISP gateway, directly connecting that server to the ISP equipment (versus being connected to my own switch).

I just don't get why one vm can ping the gateway and the other cannot.  

Edit 1: I noticed that on the windows VM that cannot ping, when going into connection status that sent bytes is 0, received continues to go up though.
I hope I explained this properly, Thank you in advance for your help.
Greg

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